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Entanglement changing power of two-qubit unitary operations | | M.-Y. Ye
; Dong Sun
; Y.-S. Zhang
; G.-C. Guo
; | | Date: |
23 Mar 2004 | | Journal: | Phys. Rev. A 70, 022326 (2004) | | Subject: | quant-ph | | Abstract: | We consider a two-qubit unitary operation along with arbitrary local unitary operations acts on a two-qubit pure state, whose entanglement is C_0. We give the conditions that the final state can be maximally entangled and be non-entangled. When the final state can not be maximally entangled, we give the maximal entanglement C_max it can reach. When the final state can not be non-entangled, we give the minimal entanglement C_min it can reach. We think C_max and C_min represent the entanglement changing power of two-qubit unitary operations. According to this power we define an order of gates. | | Source: | arXiv, quant-ph/0403163 | | Services: | Forum | Review | PDF | Favorites | |
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